Find flights
When to book
FAQs

Cheap flights from Sioux Falls to London from £172

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — LON
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Sioux Falls to London

Enter your travel dates to find the best prices.

Cheapest flights from Sioux Falls to London
Explore the most affordable flight options available from Sioux Falls to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 November 2025.

Sun 9/1105:05FSD - LHR
1 stop19h 20mVirgin Atlantic
Tue 25/1110:45LHR - FSD
2 stops18h 15mVirgin Atlantic
Deal found 5/11£443
Sun 9/1105:18FSD - LHR
2 stops19h 07mDelta
Tue 25/1106:20LHR - FSD
2 stops15h 19mDelta
Deal found 5/11£456
Fri 5/1218:08FSD - LHR
1 stop11h 07mUnited Airlines
Mon 8/1206:50LHR - FSD
2 stops33h 55mUnited Airlines
Deal found 3/11£474
Thu 4/1205:05FSD - LHR
1 stop19h 20mDelta
Sun 7/1208:55LHR - FSD
2 stops20h 19mDelta
Deal found 3/11£479
Thu 4/1209:00FSD - LHR
2 stops16h 10mUnited Airlines
Sun 7/1208:30LHR - FSD
2 stops19h 21mUnited Airlines
Deal found 3/11£483
Fri 7/1105:30FSD - LHR
1 stop20h 20mKLM
Fri 14/1110:45LHR - FSD
1 stop18h 24mKLM
Deal found 4/11£496
Fri 7/1113:35FSD - LHR
2 stops16h 05mVirgin Atlantic
Fri 14/1112:30LHR - FSD
1 stop16h 39mVirgin Atlantic
Deal found 4/11£499
Mon 24/1106:00FSD - LHR
2 stops19h 10mUnited Airlines
Tue 25/1113:30LHR - FSD
2 stops36h 53mUnited Airlines
Deal found 4/11£583
Mon 24/1111:17FSD - LHR
1 stop12h 38mLufthansa
Tue 25/1119:30LHR - FSD
2 stops30h 53mLufthansa
Deal found 4/11£629
Fri 5/1213:30FSD - LCY
2 stops12h 40mKLM
Mon 8/1208:40LCY - FSD
2 stops17h 00mKLM
Deal found 3/11£700
Thu 4/1218:08FSD - LCY
2 stops16h 32mLufthansa
Sun 7/1217:15LCY - FSD
2 stops34h 35mLufthansa
Deal found 3/11£713
Fri 12/1208:00FSD - LHR
2 stops16h 40mUnited Airlines
Sat 20/1216:20LHR - FSD
2 stops28h 07mUnited Airlines
Deal found 4/11£782

Cheap flight deals from Sioux Falls to London

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 6 November 2025.

Round-trip from

£458

One-way from

£172

Popular in

January

Cheapest in

May

Average price

£842
Delta
  • Delta
  • 10/2-19/2
  • 3 total stops
  • 40h 17m total
  • Sioux Falls to London
Search Deals
American Airlines
  • American Airlines
  • 27/4
  • 1 total stop
  • 16h 00m total
  • Sioux Falls to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£150 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£53 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sioux Falls to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from Sioux Falls to London that are best for you.

Fly from

Sioux Falls

Fly to

London

Route

Depart

Return

Price

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Tue 10/2

05:00-07:05

1 stop20h 05m

London Heathrow

Thu 19/2

09:00-23:12

2 stops20h 12m

£458

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 5/12

18:08-11:15

1 stop11h 07m

London Heathrow

Mon 8/12

06:50-10:45

2 stops33h 55m

£474

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 5/2

11:22-05:55

1 stop12h 33m

London Heathrow

Sun 8/2

06:50-21:50

2 stops21h 00m

£480

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 4/12

09:00-07:10

2 stops16h 10m

London Heathrow

Sun 7/12

08:30-21:51

2 stops19h 21m

£483

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 5/2

11:02-07:05

1 stop14h 03m

London Heathrow

Thu 12/2

08:55-23:12

1 stop20h 17m

£483

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 5/2

13:02-13:50

2 stops18h 48m

London Heathrow

Thu 12/2

06:20-15:37

2 stops15h 17m

£485

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Fri 5/12

05:05-07:50

1 stop20h 45m

London Heathrow

Mon 8/12

12:30-23:14

1 stop16h 44m

£496

Sioux FallsLondon

FSD - LCY

FSDLCY

Sioux Falls Joe Foss Field

Thu 5/2

11:22-12:55

2 stops19h 33m

London City

Sun 8/2

19:20-23:44

3 stops34h 24m

£509

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 26/2

10:50-07:05

1 stop14h 15m

London Heathrow

Sun 1/3

06:20-22:56

2 stops22h 36m

£516

Sioux FallsLondon

FSD - LHR

FSDLHR

Sioux Falls Joe Foss Field

Thu 26/2

05:08-09:00

1 stop21h 52m

London Heathrow

Sun 1/3

08:55-23:12

1 stop20h 17m

£522

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 40 results
1
2
3
4

Best time to book a flight from Sioux Falls to London

Have a flexible travel schedule? Discover the best time to fly to London from Sioux Falls with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to London

What is the cheapest month to book a flight from Sioux Falls to London?

Currently, September is the cheapest month in which you can book a flight from Sioux Falls to London (average of £500). Flying from Sioux Falls to London in May is currently the most expensive (average of £865). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What’s the top stopover airport for flights from Sioux Falls to London?

Share of one-stop return flights from Sioux Falls to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Minneapolis (MSP) – chosen by Cheapflights users on 67% of one-stop itineraries from Sioux Falls to London on Cheapflights.

What’s the cheapest stopover airport for flights from Sioux Falls to London?

Average return fare for one-stop flights from Sioux Falls to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Chicago (ORD) is the most affordable one-stop option, with an average return flight price of £572.

What’s the fastest stopover option from Sioux Falls to London?

Shortest average travel time for one-stop one-way flights from Sioux Falls to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for one-stop routes: 10h 30m.

Which airport typically offers the quickest stopover for flights from Sioux Falls to London?

Average stopover duration for one-stop one-way flights from Sioux Falls to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average stopover time of 1h 28m.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sioux Falls to London?

    For a flight from Sioux Falls to London, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to London per day. 0 airlines have flights to London from Sioux Falls Joe Foss Field on a regular basis.

  • How long is the flight from Sioux Falls to London?

    For as low as £474, Delta can have you in London from Sioux Falls in 11h 07m. The distance from Sioux Falls to London is about 4189 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Sioux Falls to London?

    The most popular route from Sioux Falls to London is Sioux Falls Joe Foss Field - London Heathrow. You may also consider Sioux Falls Joe Foss Field - London City or Sioux Falls Joe Foss Field - London Gatwick.

  • Can I find deals for flights from Sioux Falls to London that include hotel bookings?

    Yes. In addition to deals on Sioux Falls to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sioux Falls to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to London.

  • Can I find deals for business class flights from Sioux Falls to London?

    Yes. Cheapflights offers flight deals from Sioux Falls to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sioux Falls to London?

    Currently, September is the cheapest month in which you can book a flight from Sioux Falls to London (average of £500). Flying from Sioux Falls to London in May is currently the most expensive (average of £865). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Crawley
Brentford
Romford
Chichester
Ipswich
Bedford
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sioux Falls to London

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Heathrow flights
Sioux Falls to Gatwick flights
Rapid City to Heathrow flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sioux Falls to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Sioux Falls today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Sioux Falls to London?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Sioux Falls to London for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Sioux Falls to London with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sioux Falls to London, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sioux Falls to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Sioux Falls today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.